My mistake... I was completely wrong about this.! (it happens all the time!)

The problem stemmed from Roland changing the way you go about this, and also changing the nomenclature of the system. In the past, You created your Performance, then you had to 'LINK' the SMF to go with it. Now it turns out, the link is created automatically, there is no separate step. It works for SMF and MP3 (so that's an improvement over the E80, which never could link MP3's, as that ability got added in an update).

My apologies to all, and especially Roland...